I have run setupvse /qb /norestart (VSE 8.8 P2 package) and receive the following error message:-
At least one feature must be selected to continue with installation. Please select a feature in order to continue.
The Server is a Windows 2003 Serverr running SP2 and currently running VirusScan Enterprise + AntiSpyware enterprise 8.7.0i
Try adding ADDLOCAL=ALL to the command line.
Have a look at the VSE 8.8 Installation Guide which covers all of the command lines for VSE.